LONDINIUM digital pre-infusion module

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Tije and I made this clip about the installation of the Londinium digital pre-infusion module. It expands the versatility of the Londinium L-R machine as it allows a flexible and precise adjustment of the pre-infusion pressure up to 6 bar. 
Now, dark roasts can be gently extracted at a relatively low pressure, avoiding the 'burnt rubber' taste and on the other extreme of the pressure spectrum, light 'nordic' roasts and even those meant for filter coffee can be extracted as regular espresso.












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